---
title: PixVerse Modify | Runware Docs
url: https://runware.ai/docs/models/pixverse-modify
description: Mask-aware video editing for swaps, removals, restyling, and prompt-driven scene changes
---
# PixVerse Modify

PixVerse Modify is a video-to-video editing model for changing existing footage with text instructions, optional reference images, and masks. It supports subject swapping, object addition and removal, free-form scene edits such as weather or lighting changes, in-video text replacement, and full-video style transfer while preserving the source clip structure.

- **ID**: `pixverse:modify@0`
- **Status**: api-only
- **Creator**: PixVerse
- **Release Date**: April 15, 2026
- **Capabilities**: Video to Video, Edit, Checkpoint

## Pricing

Pricing starts at $0.04/s at 360p, $0.05/s at 540p, and $0.06/s at 720p.

- **360p · 1s**: `$0.04`
- **540p · 1s**: `$0.05`
- **720p · 1s**: `$0.06`

## Request Parameters

**API Options**

Platform-level options for task execution and delivery.

### [taskType](https://runware.ai/docs/models/pixverse-modify#request-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `videoInference`

Identifier for the type of task being performed

### [taskUUID](https://runware.ai/docs/models/pixverse-modify#request-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

### [outputType](https://runware.ai/docs/models/pixverse-modify#request-outputtype)

- **Type**: `string`
- **Default**: `URL`

Video output type.

**Allowed values**: `URL`

### [outputFormat](https://runware.ai/docs/models/pixverse-modify#request-outputformat)

- **Type**: `string`
- **Default**: `MP4`

Specifies the file format of the generated output. The available values depend on the task type and the specific model's capabilities.

- \`MP4\`: Widely supported video container (H.264), recommended for general use.
- \`WEBM\`: Optimized for web delivery.
- \`MOV\`: QuickTime format, common in professional workflows (Apple ecosystem).

**Allowed values**: `MP4` `WEBM` `MOV`

### [outputQuality](https://runware.ai/docs/models/pixverse-modify#request-outputquality)

- **Type**: `integer`
- **Min**: `20`
- **Max**: `99`
- **Default**: `95`

Compression quality of the output. Higher values preserve quality but increase file size.

### [webhookURL](https://runware.ai/docs/models/pixverse-modify#request-webhookurl)

- **Type**: `string`
- **Format**: `URI`

Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

**Learn more** (1 resource):

- [Webhooks](https://runware.ai/docs/platform/webhooks) (platform)

### [deliveryMethod](https://runware.ai/docs/models/pixverse-modify#request-deliverymethod)

- **Type**: `string`
- **Default**: `async`

Determines how the API delivers task results.

**Allowed values**:

- `async` Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse. Required for long-running tasks like video generation.

**Learn more** (1 resource):

- [Task Polling](https://runware.ai/docs/platform/task-polling) (platform)

### [uploadEndpoint](https://runware.ai/docs/models/pixverse-modify#request-uploadendpoint)

- **Type**: `string`
- **Format**: `URI`

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

**Common use cases:**

- **Cloud storage**: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
- **CDN integration**: Upload to content delivery networks for immediate distribution.

```text
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg
```

The content data will be sent as the request body to the specified URL when generation is complete.

### [safety](https://runware.ai/docs/models/pixverse-modify#request-safety)

- **Path**: `safety.checkContent`
- **Type**: `object (2 properties)`

Content safety checking configuration for video generation.

#### [checkContent](https://runware.ai/docs/models/pixverse-modify#request-safety-checkcontent)

- **Path**: `safety.checkContent`
- **Type**: `boolean`
- **Default**: `false`

Enable or disable content safety checking.

#### [mode](https://runware.ai/docs/models/pixverse-modify#request-safety-mode)

- **Path**: `safety.mode`
- **Type**: `string`
- **Default**: `none`

Safety checking mode for video generation.

**Allowed values**:

- `none` Disables checking.
- `fast` Checks key frames.
- `full` Checks all frames.

### [ttl](https://runware.ai/docs/models/pixverse-modify#request-ttl)

- **Type**: `integer`
- **Min**: `60`

Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`.

### [includeCost](https://runware.ai/docs/models/pixverse-modify#request-includecost)

- **Type**: `boolean`
- **Default**: `false`

Include task cost in the response.

### [numberResults](https://runware.ai/docs/models/pixverse-modify#request-numberresults)

- **Type**: `integer`
- **Min**: `1`
- **Max**: `4`
- **Default**: `1`

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

**Inputs**

Input resources for the task (images, audio, etc). These must be nested inside the \`inputs\` object.

### [referenceImages](https://runware.ai/docs/models/pixverse-modify#request-inputs-referenceimages)

- **Path**: `inputs.referenceImages`
- **Type**: `array of strings`

List of reference images (UUID, URL, Data URI, or Base64).

### [video](https://runware.ai/docs/models/pixverse-modify#request-inputs-video)

- **Path**: `inputs.video`
- **Type**: `string`
- **Required**: true

Video input (UUID or URL). Max 29.9 seconds.

### [masks](https://runware.ai/docs/models/pixverse-modify#request-inputs-masks)

- **Path**: `inputs.masks`
- **Type**: `array of strings`

Mask identifiers for targeted regions. Auto-generated when keyframe and referenceImages are provided without masks.

**Core Parameters**

Primary parameters that define the task output.

### [model](https://runware.ai/docs/models/pixverse-modify#request-model)

- **Type**: `string`
- **Required**: true
- **Value**: `pixverse:modify@0`

Identifier of the model to use for generation.

### [positivePrompt](https://runware.ai/docs/models/pixverse-modify#request-positiveprompt)

- **Type**: `string`
- **Required**: true
- **Min**: `1`
- **Max**: `2048`

Text prompt describing elements to include in the generated output.

### [resolution](https://runware.ai/docs/models/pixverse-modify#request-resolution)

- **Type**: `string`
- **Default**: `360p`

Resolution preset for the output. When used with input media, automatically matches the aspect ratio from the input.

**Allowed values**: `360p` `540p` `720p`

### [seed](https://runware.ai/docs/models/pixverse-modify#request-seed)

- **Type**: `integer`
- **Min**: `0`
- **Max**: `2147483647`

Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range.

**Settings**

Technical parameters to fine-tune the inference process. These must be nested inside the \`settings\` object.

### [keyframe](https://runware.ai/docs/models/pixverse-modify#request-settings-keyframe)

- **Path**: `settings.keyframe`
- **Type**: `integer`
- **Min**: `0`

Frame index in the input video used as anchor for editing.

## Response Parameters

### [taskType](https://runware.ai/docs/models/pixverse-modify#response-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `videoInference`

Identifier for the type of task this response belongs to.

### [taskUUID](https://runware.ai/docs/models/pixverse-modify#response-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID v4 identifier echoed from the original request, used to match async responses to their tasks.

### [videoUUID](https://runware.ai/docs/models/pixverse-modify#response-videouuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the output video.

### [videoURL](https://runware.ai/docs/models/pixverse-modify#response-videourl)

- **Type**: `string`
- **Format**: `URI`

URL of the output video.

### [videoBase64Data](https://runware.ai/docs/models/pixverse-modify#response-videobase64data)

- **Type**: `string`

Base64-encoded video data.

### [videoDataURI](https://runware.ai/docs/models/pixverse-modify#response-videodatauri)

- **Type**: `string`
- **Format**: `URI`

Data URI of the output video.

### [seed](https://runware.ai/docs/models/pixverse-modify#response-seed)

- **Type**: `integer`

The seed used for generation. If none was provided, shows the randomly generated seed.

### [NSFWContent](https://runware.ai/docs/models/pixverse-modify#response-nsfwcontent)

- **Type**: `boolean`

Flag indicating if NSFW content was detected.

### [cost](https://runware.ai/docs/models/pixverse-modify#response-cost)

- **Type**: `float`

Task cost in USD. Present when `includeCost` is set to `true` in the request.

## Examples

### Subterranean Fungal Transit Platform (Video to Video)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/c9ad53e6-a884-4274-a87c-a1cf458c97e3.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "dbe3b03a-7c5b-46ad-aa46-7b4d1167d842",
  "model": "pixverse:modify@0",
  "positivePrompt": "Transform the subway platform into a vast subterranean fungal transit station carved into warm basalt caverns. Keep the original camera motion, platform layout, train timing, and human positions, but replace tiled walls with layered rock and sprawling shelf mushrooms, overhead lights with glowing amber spore-pods, and station signage with elegant route symbols etched into mineral panels. The arriving train becomes a sleek mineral-and-ceramic commuter vehicle with soft organic contours and faint pollen-like motes drifting around it. Commuters wear practical travel clothing accented with natural fiber capes, mushroom-leather bags, and subtle earth-toned trims. Add shallow ground mist, damp reflective stone, delicate hanging roots, and rich textures of ochre, umber, rust, and muted gold. Cinematic fantasy realism, immersive environmental detail, believable integration, high consistency across frames.",
  "resolution": "720p",
  "seed": 12333,
  "settings": {
    "keyframe": 12
  },
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/e68449fa-e3f6-4689-8b9d-ac5d4aa896ea.mp4"
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "dbe3b03a-7c5b-46ad-aa46-7b4d1167d842",
  "videoUUID": "9ef953b6-018f-4f80-885b-d7d182d0b378",
  "videoURL": "https://vm.runware.ai/video/os/a02d21/ws/5/vi/9ef953b6-018f-4f80-885b-d7d182d0b378.mp4",
  "seed": 12333,
  "cost": 0.42
}
```

---

### Flooded Grand Terminal Reimagining (Video to Video)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/337d716a-9146-4e1c-bb44-a9478e373be1.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "60e3822a-e8b0-4f24-b9aa-b4836c885986",
  "model": "pixverse:modify@0",
  "positivePrompt": "Transform the train terminal into a vast underwater civic hall. Keep the original camera movement, composition, architecture, and blocking, but replace the dry interior with a fully submerged scene. The floor becomes a shallow reflective seabed with rippled sand and scattered shells, columns and arches gain soft coral growth and sea fans, suspended particles drift through the water, and schools of small silver fish weave between commuters who are now stylized as divers in elegant vintage-inspired suits with clear helmets. Sunbeams filter down from above with shimmering caustic patterns across walls and floor. Ticket boards become weathered nautical wayfinding signs, benches are partially overgrown with anemones, and the whole space feels majestic, serene, and dreamlike, with cinematic realism and rich turquoise-gold color contrast.",
  "resolution": "720p",
  "seed": 56321,
  "settings": {
    "keyframe": 12
  },
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/3dfefdc2-67e1-4515-b104-781c9b79c5cb.mp4"
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "60e3822a-e8b0-4f24-b9aa-b4836c885986",
  "videoUUID": "42b63029-2316-4dbd-9fd2-198e0eda1ab7",
  "videoURL": "https://vm.runware.ai/video/os/a06dlim3/ws/5/vi/42b63029-2316-4dbd-9fd2-198e0eda1ab7.mp4",
  "seed": 56321,
  "cost": 0.42
}
```

---

### Storm-Swept Night Market Chase (Video to Video)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/5e915583-f568-43ab-bdfc-d3177f920481.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "1b5aafb9-6e31-44ef-917d-5974b73a1f6d",
  "model": "pixverse:modify@0",
  "positivePrompt": "Transform the source footage into a tense futuristic street bazaar during a violent windstorm at midnight. Keep the original camera motion, walking path, stall layout, and crowd blocking, but restyle the environment with holographic price tags, drenched pavement reflections, torn fabric awnings whipping overhead, sparks from damaged cables, scattered fruit crates sliding across the ground, and a courier sprinting through the center of frame as if escaping pursuit. Add flickering multilingual shop signage, streaks of blue and amber light, misty exhaust from compact scooters, and a cinematic action-thriller mood. Preserve believable human motion and spatial continuity.",
  "resolution": "720p",
  "seed": 56932,
  "settings": {
    "keyframe": 12
  },
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/a1ebcfa6-8c55-47bf-8764-5ddbbe03cd58.mp4"
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "1b5aafb9-6e31-44ef-917d-5974b73a1f6d",
  "videoUUID": "cce011d8-c8b4-47d6-96ff-59958d656ebe",
  "videoURL": "https://vm.runware.ai/video/os/a05d22/ws/5/vi/cce011d8-c8b4-47d6-96ff-59958d656ebe.mp4",
  "seed": 56932,
  "cost": 0.42
}
```

---

### Sunken Aquarium Ballroom Revival (Video to Video)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/4e23658c-8cb4-457c-99a6-eb7215004fbb.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "05f3980c-eeb4-411a-ac7a-db394d303313",
  "model": "pixverse:modify@0",
  "positivePrompt": "Transform the ballroom into a vast submerged aquarium hall with cracked marble columns, drifting ribbons of seagrass, schools of silver fish gliding beyond towering glass walls, soft caustic light patterns moving across the floor and ceiling, elegant formal attire restyled into flowing aquatic couture with translucent fabrics and pearl details, suspended bubbles, faint haze, dreamlike grandeur, cinematic realism, preserve the dancers' choreography, camera motion, body proportions, and overall framing.",
  "resolution": "720p",
  "seed": 44629,
  "settings": {
    "keyframe": 24
  },
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/6228e0a9-6cc6-4bc6-ad8b-599bdd0734a5.mp4"
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "05f3980c-eeb4-411a-ac7a-db394d303313",
  "videoUUID": "8b6c30ca-70f9-4604-8e7b-a5c4406dbd89",
  "videoURL": "https://vm.runware.ai/video/os/a09dlim3/ws/5/vi/8b6c30ca-70f9-4604-8e7b-a5c4406dbd89.mp4",
  "seed": 44629,
  "cost": 0.42
}
```